Processing...

Skip Navigation Link www.nws.noaa.gov
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
Hydrometeorological Design Studies Center - Precipitation Frequency Data Server header logo
   
 

 
 

NOAA ATLAS 14 POINT PRECIPITATION FREQUENCY ESTIMATES

Data description

Select location

1. Manually:
a) By location (decimal degrees, use "-" for S and W)

b) By station Click here for a list of stations used in frequency analysis :

c) By address

2. Use map:

a) Select location

Move crosshair or double click

b) Click on station icon
Zoom in to see stations
Map bookmarks:
Location information:

Name: *

Station name: -

Site ID: -

Latitude: -

Longitude: -

Elevation: **

* Source: ESRI Maps
** Source: USGS

POINT PRECIPITATION FREQUENCY (PF) ESTIMATES

WITH 90% CONFIDENCE INTERVALS AND SUPPLEMENTARY INFORMATION
NOAA Atlas 14, Volume , Version
 Print page
-based precipitation frequency estimates with 90% confidence intervals (in )1
Duration ()
5-min - - - - - - - - - -
10-min - - - - - - - - - -
15-min - - - - - - - - - -
30-min - - - - - - - - - -
60-min - - - - - - - - - -
2-hr - - - - - - - - - -
3-hr - - - - - - - - - -
6-hr - - - - - - - - - -
12-hr - - - - - - - - - -
24-hr - - - - - - - - - -
2-day - - - - - - - - - -
3-day - - - - - - - - - -
4-day - - - - - - - - - -
7-day - - - - - - - - - -
10-day - - - - - - - - - -
20-day - - - - - - - - - -
30-day - - - - - - - - - -
45-day - - - - - - - - - -
60-day - - - - - - - - - -
1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of .
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and ) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
Please refer to NOAA Atlas 14 document for more information.
curve plots Years Legend
Durations Legend
Duration:



















Fixed Duration Estimates Plot Duration Plot Legend
  1. Document
    2. Click here for this volume's document.
  2. PF in GIS format
    3. Spatially interpolated precipitation frequency estimates (with upper and lower bounds of the 90% confidence interval) area available in GIS compatible format (ascii file). For default download page click here.

  3. PF cartographic maps
    4. Cartographic maps of precipitation frequency estimates were created for selected average recurrence intervals and durations. We recommend that these color maps are used as visual aids only. For default cartographic maps' page click here.

  4. Temporal distributions
    5. Temporal distributions are provided for 6-hour, 12-hour, 24-hour, and 96-hour durations. The temporal distributions for the duration are expressed in probability terms as cumulative percentages of precipitation totals (see documentation for more information). To provide detailed information on the varying temporal distributions, separate temporal distributions were derived for four precipitation cases defined by the duration quartile in which the greatest percentage of the total precipitation occurred.

  5. Seasonality analysis expandable
    6. The seasonality graphs show the percentage of precipitation totals for a given duration that exceeded the precipitation frequency estimates for the duration and selected annual exceedance probabilities in each month for each region. The precipitation frequency estimates were derived from annual maximum series at each station in the region (as described in documentation). Results are provided for 60-min, 24-hr, 2-day, and 10-day durations and for annual exceedance probabilities of 1/2 (or 1-in-2), 1/5, 1/10, 1/25, 1/50, and 1/100. Seasonality graphs should not be used to derive seasonal precipitation frequency estimates.

    Select Duration:




    		Seasonality Plot Seasonality Plot Legend
  6. Rainfall frequency estimates expandable
    7. Rainfall (liquid precipitation only) frequency estimates are not available for this area (currently only available for California).
    Rainfall (liquid precipitation only) frequency estimates are provided for durations between 1 and 24 hours in addition to precipitation frequency estimates. Please refer to NOAA Atlast 14 document for more information.
    -based rainfall frequency (RF) estimates with 90% confidence intervals (in )1
    Duration ()
    60-min - - - - - - - - - -
    2-hr - - - - - - - - - -
    3-hr - - - - - - - - - -
    6-hr - - - - - - - - - -
    12-hr - - - - - - - - - -
    24-hr - - - - - - - - - -
    1 Rainfall frequency (RF) estimates in this table are based on frequency analysis of .
    Numbers in parenthesis are RF estimates at lower and upper bounds of the 90% confidence interval. The probability that rainfall frequency estimates (for a given duration and ) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values.
    Please refer to NOAA Atlas 14 document for more information.
  7. Time series data
  8. Climate data source
    9. Precipitation frequency results are based on data from a variety of sources, but largely from the National Centers for Environmental Information - NCEI (formerly National Climatic Data Center - NCDC). For more information about observing sites in the area, regardless of if their data was used in this study, please visit NCEI's Climate Data Online.

    For detailed information about the stations used in this study, please refer to NOAA Atlas 14 Document.
  9. Watershed information
    10. Click here to get the watershed information for this location from the U.S. Environmental Protection Agency's (EPA) site.
Main Link Categories:
Home | OWP
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Office of Water Prediction (OWP)
1325 East West Highway
Silver Spring, MD 20910
Page Author: HDSC webmaster
Page last modified: April 21, 2017 		Map Disclaimer
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities